Vin Diesel has revealed [via his facebook page] some brand new concept art for the next 'Riddick' film, to be directed by David Twohy. The third movie is set to begin filming in September and as a birthday present to ole Diesel, Twohy sent the actor a piece of concept art for the movie. Vin Diesel recently revealed that he will have three different body types in the movie. The 'DiNorscio' type is how he looked in Find Me Guilty, for which Diesel gained 30 lbs of fat. The 'Dom' type is how he looked in Fast and Furious, [the most muscular] & the 'Furyan type' is how he looked in Pitch Black & The Chronicles of Riddick, in which he is more toned.

Synopsis:

Betrayed by his own kind and left for dead on a desolate planet, Riddick (Diesel) fights for survival against alien predators and becomes more powerful and dangerous than ever before. Soon bounty hunters from throughout the galaxy descend on Riddick only to find themselves pawns in his greater scheme for revenge. With his enemies right where he wants them, Riddick unleashes a vicious attack of vengeance before returning to his home planet of Furya to save it from destruction.